Can I use this skill to refactor existing legacy code?

Yes, it is specifically designed to help plan and execute the migration from tightly coupled codebases to modular, loosely coupled architectures.

What specific architectures does this skill support?

The skill provides comprehensive guidance for Clean Architecture, Hexagonal Architecture (also known as Ports and Adapters), and Domain-Driven Design (DDD).

How does this skill improve code testability?

By implementing ports and adapters, it decouples core business logic from external dependencies like databases and APIs, allowing you to use mocks for easier unit testing.

Does it provide language-specific implementations?

While the principles are universal, the skill provides implementation patterns and directory structures that can be adapted to any backend language including Python, Java, or Go.

Backend Architecture Patterns

Name: Backend Architecture Patterns
Author: HermeticOrmus

byHermeticOrmus

0•

API 开发

Implements robust backend structures like Clean Architecture, Hexagonal Architecture, and Domain-Driven Design to ensure long-term maintainability.

This skill equips Claude with the expertise to design and refactor complex backend systems using industry-standard architectural patterns. It provides domain-specific guidance on implementing Clean Architecture for strict layer isolation, Hexagonal Architecture (Ports and Adapters) for infrastructure decoupling, and Domain-Driven Design (DDD) for modeling business-critical logic. By following these patterns, users can build systems that are highly testable, technology-agnostic, and prepared for future scalability or migration, whether starting a new project or modernizing a legacy monolith.

主要功能

01Standardized directory structure templates for scalable backend projects

02Clean Architecture implementation with inward-pointing dependency flows

03Hexagonal Architecture (Ports and Adapters) for infrastructure decoupling

04Domain-Driven Design (DDD) tactical patterns including Aggregates and Value Objects

050 GitHub stars

06Guidance on refactoring tightly coupled code into loosely coupled components

使用场景

01Designing a new microservice from scratch with a clear separation of concerns

02Refactoring a legacy monolith into a more maintainable modular architecture

03Establishing standardized architectural patterns and ubiquitous language for engineering teams

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hermeticormus/after-the-third-cup architecture-patterns

For use in Claude.ai and ChatGPT

Download Skill